This example magnifies the Earth when it gets close to a magnifying glass. We place a magnifying glass on paddle 1 and the Earth on paddle 2. We then create a rule so that when the Earth is close to the magnifying glass, it triggers a resize result which makes the earth larger.
Other ideas: show the relative sizes of two planets; add a reposition result to make an insect so large that only its head fits on the paddle (so you can see its facial features up close); make different paddles magnify different parts of the insect; add information text to describe the function of each part; what other 3D models would benefit from being magnified?

Add all planets. Make all planets scale when they touch the sun so that both are at their relative sizes. Then do the same for the earth relative to the other planets.
Other ideas: make these interactions also play sound effects; make a jelly alien squash the appropriate amount compared to the gravity of the planet he is close to; make an astronaut jump as high as he can appropriate to the gravity of the planet he its close to; make a bar get taller appropriate to the mass or density or distance to the sun of the planet it is close to; what other 3D models could benefit from this interaction?

This video shows how to use a Rule Result of “Rotate” in the Imaginality Builder. This includes an example of placing a fish on a paddle, rotating it in two different axes, and viewing the result in both Webcam Mode and Mouse Mode.

This video shows how to use a Rule Result of “Resize” in the Imaginality Builder. This includes an example of placing a space ship and a magnifying glass on two separate paddles and making the space ship get larger when it is close to the magnifying glass.

This video gives a quick, 3.5 minute overview of the Imaginality Builder by building a simple module that places the Earth on paddle 1 and a magnifying glass on paddle 2 and makes the magnifying glass enlarge the Earth when the 2 paddles get close to each other.